Template:Announcements: Difference between revisions
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===== New Raith EBL: tool up ===== |
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It appears that the combination of higher beam currents than usual (we did after all upgrade our EBL capabilities for the purpose of higher throughput at much higher beam currents) and the particular (extremely sparse) stitch patterns we use to measure stitch accuracy revealed a subtle limitation in the Fine Focus coil used in their systems (the Fine Focus coil adjusts focal point on the substrate as the beam is deflected around the 1mm field). |
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The latest revision of software has several bugs: see email for details. We are working with Oxford to resolve via software upgrade. |
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We are working with the tool designers in Eindhoven as well as the service team in the US to “fix” this issue. However, in the meantime, we understand and recognize the problem sufficiently to address it if it comes up in real day-to-day usage. |
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We will be signing off on the tool tomorrow morning at which point the tool will be available for '''general EBL use to our nanofab community'''. I will be working with a few experienced users in the next couple of days and then will be reaching out to a wider audience to get more of you trained. -- Bill Mitchell |
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===== SignupMonkey + Wiki: Off-Campus Access===== |
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Due to a DDoS attack affecting the Signupmonkey server, we have restricted access to the website to US locations only, including both the Nanofab Wiki and Signupmonkey. |
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The ASML will be down for periodic preventative maintenance on Jan 29th-Jan31st, please plan your process accordingly. |
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// [[User:John_d|Demis D. John]] 17:00, 11 January 2024 (PST) |
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If you are off-campus and experiencing issues, please utilize the UCSB VPN to access our sites. Here are the installation instructions for VPN on your device. You will need your UCSB NetID for download and installation - you would have received a UCSB NetID when you started using the NanoFab: |
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Beginning Tuesday January 23rd, we will be pulling gowns and booties for refresh. Please remove all personal items from your suits prior to the week your section will be cleared. |
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https://it.ucsb.edu/ivanti-secure-access-campus-vpn/get-connected-campus-vpn |
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EBeam1 is UP. |
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-- Vraj |
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=====DUV Flood: UP with new procedure===== |
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The new parts have been installed and the tool has been tested. |
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We have added a timer that interlocks the lamp power supply since some users seem to have a problem remembering to turn the tool off when finished with it. The minimum time it can be set for is 30 minutes and the max is 4 hours. You will no longer be operating the main breaker on the front of the power supply. I have updated the SOP to reflect the changes, there is a copy at the tool and on [https://wiki.nanofab.ucsb.edu/wiki/DUV_Flood_Expose#Documentation:~:text=Exposure%20System%20Spectra-,Documentation,-%5Bedit%20%7C its Wiki page]. |
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We found a blown resistor (and a questionable op amp) on one of the boards that contains the z-axis motor circuit. However, we still cannot get the tool to initialize. Next we will try swapping out the hard drive again and run some more tests. |
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I will send out an update once we have one. |
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-Aidan |
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=====Stepper #1 (GCA 6300) - Scheduled Maintenance===== |
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The board we were waiting on arrived, but it did not resolve the tool issue. We are working with Panasonic on the next steps. |
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The tool will be undergoing maintenance and be unavailable the following dates and times: |
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1-18-24 at 8:00am to 1-18-24 at 6:00pm |
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Please plan your processing activities accordingly. |
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Bill Millerski |
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//[[User:Mehalana v|Vraj Mehalana]] 21:49, 21 December 2023 (PST) |
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===== Stepper #2 (GCA Autostep 200) - Scheduled Maintenance===== |
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The tool will be undergoing maintenance and be unavailable the following dates and times: |
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1-15-24 at 8:00am to 1-17-24 at 6:00pm |
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Please plan your processing activities accordingly. |
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//[[User:Mehalana v|Vraj Mehalana]] 21:49, 21 December 2023 (PST) |
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=====Job Opening: Process Engineer===== |
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The Nanofab has a current job opening for a Process/Wafer-Fab Engineer, see the [https://wiki.nanofab.ucsb.edu/wiki/Nanofab_Job_Postings NanoFab Job Openings page] for details. |
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//[[User:John d|Demis D. John]] 14:52, 30 October 2023 (PDT) |
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=====Lab Access Changes: Symmetry App===== |
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Card/Iris scanner access is still currently enabled. However we will be moving to a smartphone-based access system. '''IMPORTANT''': check your email to setup the new smartphone access system, so you will be ready when we switch to the new system. Look for an email titled '''''"Invitation to Access Symmetry App"'''''. |
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// [[User:John d|John d]] 13:49, 7 November 2023 (PST) |
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=====Wafer Bonder, (Suss SB6-8E)===== |
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SUSS aims to be on site in early February. We’ll will send out an email once I get confirmation for a specific date. |
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//[[User:Mehalana v|Vraj Mehalana]] 14:23, 13 December 2023 (PST) |
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Latest revision as of 16:28, 2 July 2025
New Raith EBL: tool up
It appears that the combination of higher beam currents than usual (we did after all upgrade our EBL capabilities for the purpose of higher throughput at much higher beam currents) and the particular (extremely sparse) stitch patterns we use to measure stitch accuracy revealed a subtle limitation in the Fine Focus coil used in their systems (the Fine Focus coil adjusts focal point on the substrate as the beam is deflected around the 1mm field). We are working with the tool designers in Eindhoven as well as the service team in the US to “fix” this issue. However, in the meantime, we understand and recognize the problem sufficiently to address it if it comes up in real day-to-day usage.
We will be signing off on the tool tomorrow morning at which point the tool will be available for general EBL use to our nanofab community. I will be working with a few experienced users in the next couple of days and then will be reaching out to a wider audience to get more of you trained. -- Bill Mitchell // Demis D. John 16:28, 2 July 2025 (UTC)
SignupMonkey + Wiki: Off-Campus Access
Due to a DDoS attack affecting the Signupmonkey server, we have restricted access to the website to US locations only, including both the Nanofab Wiki and Signupmonkey.
If you are off-campus and experiencing issues, please utilize the UCSB VPN to access our sites. Here are the installation instructions for VPN on your device. You will need your UCSB NetID for download and installation - you would have received a UCSB NetID when you started using the NanoFab:
https://it.ucsb.edu/ivanti-secure-access-campus-vpn/get-connected-campus-vpn
-- Vraj // Demis D. John 20:08, 22 April 2025 (UTC)
Suss SB6-8E
We found a blown resistor (and a questionable op amp) on one of the boards that contains the z-axis motor circuit. However, we still cannot get the tool to initialize. Next we will try swapping out the hard drive again and run some more tests.
I will send out an update once we have one. -Aidan // Demis D. John 00:35, 8 December 2024 (UTC)
ICP1 Down
The board we were waiting on arrived, but it did not resolve the tool issue. We are working with Panasonic on the next steps. //Vraj Mehalana 14:17, 1 March 2024 (PST)